If you want to do repairs on your own Hyosung RT 125 Karion then it is always a good plan to have access to a Workshop Manual to use as a guide in the event you want to know the right way to take off a specific component including Door and match it again properly.
Hyosung RT 125 Karion Workshop Manuals can provide particular diagnostic information for the automobile so if something is wrong it can help you figure out what the problem is and the way to correct it. After that you can evaluate if this can be done by yourself or if ever the job is simply too big you could make a booking for your RT 125 Karion in with a trusted repair garage.
Hyosung RT 125 Karion manual